diff --git a/benchmark/napi/type-tag-check/.gitignore b/benchmark/napi/type-tag-check/.gitignore
new file mode 100644
index 00000000000000..567609b1234a9b
--- /dev/null
+++ b/benchmark/napi/type-tag-check/.gitignore
@@ -0,0 +1 @@
+build/
diff --git a/benchmark/napi/type-tag/.gitignore b/benchmark/napi/type-tag/.gitignore
new file mode 100644
index 00000000000000..567609b1234a9b
--- /dev/null
+++ b/benchmark/napi/type-tag/.gitignore
@@ -0,0 +1 @@
+build/